930 



Gen. 354. 



SPH^RIACEI. 



HYPOSFILA, Fl 



Pcritliecia globose, black, mouth- 

 less, innate, concealed by the 

 blackened substance of the leaves, 

 ultimately splitting across. — Fr. 

 S.V.S.pA2l. 



(Fi'g. AOi.) 



Fig. 404. 



2799. 



Hypospila quercina. Fr. " Oak-leaf Hypospila." 



Spermogoxia. — S]3ermatia minute, cylindrical, curved. 



AscopHORE. — Minute, disposed in circles, penetrating the 

 L'af, flattened, black, at length sjilitting all round ; perithecia 

 slightly prominent, convex, at length umbilicate ; sporidia bi- 

 seriate, elliptical, colourless, curved. — Fi\ S.V.S. p. 4:21. Cooke 

 exs. no. 177. Fcli. exs. no. 417. Cooke L.F. no. 90. Curr. Linn. 

 rmws. xxii. ^. 49,/. 204. Sph. hifrons, Fr. S.M. ii. p. A38. Eng. 

 FL V. p. 258. S. circumvoluta, Sow. t. 373,/. 4. Xyloma DC. 

 Mem. Mus. ii. t. 3,/ 11. Moug. exs. no. 480. 



On dry oak leaves. 



Patches angular, not one line broad, their shape being dependant on the 

 meshes of the veins, seated on a white spot; perithecia one or more, at 

 length naked, from the upper portion of the patch breaking off. — M.J.B. 



Sporidia ('0005 in.) -0127 m.m. {Fig. 404.) 



2300. 



Hypospila populina. Fr. " Poplar Hypospila." 



Spermogonia. — Spermatia minute, cylindrical, curved. 



AscoPHORE. — Innate, flat, angular, opaque, black, scattered 

 upon a pale spot ; perithecia latent, generally solitary ; sporidia 

 filiform, the length of the asci, colourless, multiseptate. — Fr. S. 

 V.S.p. 421. Fckl.exs.no. 418. Sph. ceutliocarpa^ Fr. S.M.u. p. 

 439. Eng. Fl. \.p. 258. Moug. exs. no. 269. Curr. Linn. Trans. 

 xxii.f.49,/213. 



On dry poplar leaves. 



More scattered than H. quercina, rather larger, and not shining. 



